- ICH GCP
- US-Register für klinische Studien
- Klinische Studie NCT01836718
Assessment of Intrahepatic Hepatitis C Virus (HCV) RNA Levels at the Time of Liver Transplantation
An Assessment of Intrahepatic HCV RNA Levels at the Time of Liver Transplantation in Patients With HCV Receiving Antiviral Therapy While on the Liver Transplant Waiting List Compared to Those Not Currently Receiving Therapy
The purpose of this study is to measure intrahepatic HCV RNA levels at the time of liver transplantation in patients receiving antiviral therapy while on the liver transplant waiting list. This will eventually be correlated with the degree of hepatic fibrosis present within different geographic sites in the cirrhotic liver. Tissue samples will be obtained from the patient's liver explant as well as hilar lymph nodes. Upon the removal of the cirrhotic liver at the time of transplantation, the explant will be biopsied multiple times in different segments of the liver and preserved for viral detection studies as well as analysis of the degree of fibrosis. Peripheral blood mononuclear cells (PBMCs) will be obtained for viral detection at the time of transplantation. Serum HCV RNA levels will also be obtained at 1 month, 3 months and 6 months post liver transplantation.
Study Hypotheses:
- Virological relapse or non-response is higher is patients with cirrhosis due to failure of antiviral medication to concentrate adequately in a fibrotic liver having an altered sinusoidal micro-architecture
- HCV may persist in different geographic regions of the fibrotic liver in part predicated on blood supply to that area and this may have an effect on overall virological response. These differences in viral persistence and detection may exist in different lobes of the liver or even within a few centimeters within the same portion of the liver parenchyma.
- PBMC and hilar lymph nodes may be extrahepatic reservoirs of HCV viral persistence in patients receiving antiviral therapy and may account for virological relapse post-therapy
- There may be varying degrees of fibrosis within the same cirrhotic liver which may impact on hepatic synthetic function and antiviral response to treatment.
Studienübersicht
Status
Bedingungen
Studientyp
Einschreibung (Voraussichtlich)
Kontakte und Standorte
Studienorte
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New York
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New York, New York, Vereinigte Staaten, 10029
- Mount Sinai School of Medicine Recanati/Miller Transplantation Institute
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Teilnahmekriterien
Zulassungskriterien
Studienberechtigtes Alter
Akzeptiert gesunde Freiwillige
Studienberechtigte Geschlechter
Probenahmeverfahren
Studienpopulation
Beschreibung
Inclusion Criteria:
- Patients age 18-80 with chronic HCV on the liver transplant waiting list may be eligible for participation
The following subjects will be enrolled:
- Patients undergoing liver transplantation who are documented HCV viral load undetectable while on antiviral therapy
- Patients receiving anti-viral therapy and who have a detectable HCV viral load
- Patients not currently receiving antiviral therapy and are HCV PCR (+) will be included and serve as a comparison group
Exclusion Criteria:
- Patients who are co-infected with HIV and/or HBV will not be included
Studienplan
Wie ist die Studie aufgebaut?
Designdetails
Kohorten und Interventionen
Gruppe / Kohorte |
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HCV RNA (-) on anti-viral therapy
Patients undergoing liver transplantation who are documented HCV viral load undetectable while on antiviral therapy
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HCV RNA (+) on anti-viral therapy
Patients undergoing liver transplantation who are receiving anti-viral therapy and who have a documented detectable HCV viral load
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HCV RNA (+) not on anti-viral therapy
Patients undergoing liver transplantation who are not currently receiving anti-viral therapy and are documented viral load positive will be included and serve as a comparison group
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Was misst die Studie?
Primäre Ergebnismessungen
Ergebnis Maßnahme |
Maßnahmenbeschreibung |
Zeitfenster |
---|---|---|
HCV RNA PCR levels
Zeitfenster: Time of Transplantation
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The primary objective is to detect and quantitate HCV RNA PCR levels in different anatomic regions of the liver at the time of liver transplantation to ascertain whether there is similar geographic presence and/or clearance of HCV during antiviral therapy
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Time of Transplantation
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Sekundäre Ergebnismessungen
Ergebnis Maßnahme |
Maßnahmenbeschreibung |
Zeitfenster |
---|---|---|
HCV persistence
Zeitfenster: Time of Transplantation
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To ascertain whether HCV persistence within the liver is predictive of virological relapse post liver transplantation.
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Time of Transplantation
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Hepatic Fibrosis
Zeitfenster: Time of Transplantation
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To assess the degree of hepatic fibrosis at the site of intrahepatic HCV viral detection in order to ascertain whether HCV viral detection correlates with the degree of fibrosis.
This study will also examine whether there can be different degrees of hepatic fibrosis in different geographic portions of the same liver and whether there would be a correlation with the patients' natural MELD score, degree of hepatic synthetic function and ultimate virological response to antiviral therapy.
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Time of Transplantation
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Extrahepatic reservoirs
Zeitfenster: Time of Transplantation
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To examine whether hilar lymph nodes and PBMC are extrahepatic reservoirs of HCV in patients receiving antiviral therapy and then to correlate this with intrahepatic detection of HCV and overall virological response.
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Time of Transplantation
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Mitarbeiter und Ermittler
Sponsor
Ermittler
- Hauptermittler: Thomas D Schiano, MD, Mount Sinai School of Medicine Recanati/Miller Transplantation Institute
Studienaufzeichnungsdaten
Haupttermine studieren
Studienbeginn
Primärer Abschluss (Voraussichtlich)
Studienabschluss (Voraussichtlich)
Studienanmeldedaten
Zuerst eingereicht
Zuerst eingereicht, das die QC-Kriterien erfüllt hat
Zuerst gepostet (Schätzen)
Studienaufzeichnungsaktualisierungen
Letztes Update gepostet (Schätzen)
Letztes eingereichtes Update, das die QC-Kriterien erfüllt
Zuletzt verifiziert
Mehr Informationen
Begriffe im Zusammenhang mit dieser Studie
Schlüsselwörter
Zusätzliche relevante MeSH-Bedingungen
- Erkrankungen des Verdauungssystems
- RNA-Virusinfektionen
- Viruserkrankungen
- Infektionen
- Durch Blut übertragene Infektionen
- Übertragbare Krankheiten
- Leberkrankheiten
- Flaviviridae-Infektionen
- Hepatitis, viral, menschlich
- Enterovirus-Infektionen
- Picornaviridae-Infektionen
- Hepatitis
- Hepatitis A
- Hepatitis C
Andere Studien-ID-Nummern
- MISP-50064
- 13-00099 (Andere Kennung: Mount Sinai PPHS)
Diese Informationen wurden ohne Änderungen direkt von der Website clinicaltrials.gov abgerufen. Wenn Sie Ihre Studiendaten ändern, entfernen oder aktualisieren möchten, wenden Sie sich bitte an register@clinicaltrials.gov. Sobald eine Änderung auf clinicaltrials.gov implementiert wird, wird diese automatisch auch auf unserer Website aktualisiert .
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